doc: /* *Non-nil means deactivate the mark when the buffer contents change.
Non-nil also enables highlighting of the region whenever the mark is active.
The variable `highlight-nonselected-windows' controls whether to highlight
-all windows or just the selected window. */);
+all windows or just the selected window.
+
+If the value is `lambda', that enables Transient Mark mode temporarily
+until the next buffer modification. If a command sets the value to `only',
+that enables Transient Mark mode for the following command only. */);
Vtransient_mark_mode = Qnil;
DEFVAR_LISP ("inhibit-read-only", &Vinhibit_read_only,